Staff Selection Commission Combined Graduate Level Exam
Question : What are the three parts of bacterial flagellum?
Option 1: Head, tail and lower body
Option 2: Filament, tail and hook
Option 3: Basal body, tail and filament
Option 4: Filament, hook and basal body
Correct Answer: Filament, hook and basal body
Solution : The correct option is Filament, hook and basal body.
The bacterial flagellum is a whip-like appendage that protrudes from the surface of certain bacteria, allowing them to move. It plays a crucial role in the bacterium's motility.
Filament: This is
Question : Select the option that expresses the given sentence in active voice.
A new gallery is being built inside the city stadium.
Option 1: They will build a new gallery inside the city stadium.
Option 2: They were building a new gallery inside the city stadium.
Option 3: They have been building a new gallery inside the city stadium.
Option 4: They are building a new gallery inside the city stadium.
Correct Answer: They are building a new gallery inside the city stadium.
Solution : The correct choice is the fourth option.
Explanation:
To transform a sentence from passive voice to active voice, identify the subject that is performing the action and make it the subject of the active sentence.
The
Question : Twenty-one times a positive number is less than its square. The value of the positive number is:
Option 1: 25
Option 2: 26
Option 3: 42
Option 4: 41
Correct Answer: 25
Solution : Let the number be x, According to the question x2 – 21x = 100 ⇒ x2 – 21x – 100 = 0 ⇒ x2 – 25x + 4x – 100 = 0 ⇒ x (x – 25) + 4 (x – 25)
Question : In a class of 60 students, there are 35 boys. The average weight of boys is 42 kg and the average weight of the full class is 46.5 kg. Find the average weight of girls in the class.
Option 1: 48.7 kg
Option 2: 49.7 kg
Option 3: 52.8 kg
Option 4: 56.7 kg
Correct Answer: 52.8 kg
Solution : Let the average weight of girls in the class be $x$ Given the average weight of boys = 42 kg Number of boys = 35 The average weight of the class = 46.5 kg Total number of students = 60 So, the number of
Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 11, 36, ?, 121, 185, 266
Option 1: 68
Option 2: 72
Option 3: 70
Option 4: 63
Correct Answer: 72
Solution : Given: 11, 36, ?, 121, 185, 266
Add the square of the consecutive numbers, (starting from 5) to the previous number to obtain the next number of the series. 11 + (5)2 = 11 + 25 = 36; 36 + (6)2 = 36
Question : When was a comprehensive dispatch on education called Wood's dispatch on Education sent?
Option 1: 1833
Option 2: 1854
Option 3: 1858
Option 4: 1813
Correct Answer: 1854
Solution : The correct answer is 1854.
Charles Wood was the President of the English East India Company's Board of Control. He had also served as India's Secretary of State. He had a significant effect on the spread of education in India. He submitted a dispatch to
Question : Two points P and Q are at the distance of $x$ and $y$, where $y>x$, respectively from the base of a building and on a straight line. If the angles of elevation on the top of the building from points P and Q are complementary, then what is the height of the building?
Option 1: $xy$
Option 2: $\sqrt\frac{y}{x}$
Option 3: $\sqrt\frac{x}{y}$
Option 4: $\sqrt{xy}$
Correct Answer: $\sqrt{xy}$
Solution : Given: Two points P and Q are at the distance of $x$ and $y$, where $y>x$, respectively from the base of a building and on a straight line. $\tan\ \theta =\frac{AB}{x}$--------(equation 1) In $\triangle ABQ$, $\tan\ (90°–\ \theta) =\frac{AB}{y}$ $⇒\cot\ \theta =\frac{AB}{y}$-------(equation 2) From equation
Question : Directions: In the following question, out of the four alternatives, select the alternative that will improve the bracketed part of the sentence. In case no improvement is needed, select "No Improvement".
(Woe betide) the youngster who is less than respectful.
(1) Woes beside
(2) Woe beside
(3) Woes betide
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (1)
Solution : The fourth option is the correct choice.
It's a set phrase, and woe betide is the correct form, as it is used humorously to warn (someone) that they will be in trouble if they do a specified thing.
Therefore, the correct sentence is: Woe betide
Question : After question hour, a motion moved by a Member of Parliament to draw the attention of the Executive to discussing a definite matter of public importance is
Option 1: Privilege motion
Option 2: Calling attention Motion
Option 3: Adjournment motion
Option 4: No-confidence motion
Correct Answer: Adjournment motion
Solution : The correct answer is an Adjournment motion.
The adjournment motion is presented in the Parliament to call the House's attention to a specific issue of urgent public importance and requires the support of 50 members to be admitted. This circumstance specifies the time for
Question : The circumference of the base of a right circular cone is 44 cm and its height is 24 cm. The curved surface area (in cm2) of the cone is: (Take $\pi=\frac{22}{7}$)
Option 1: 528
Option 2: 572
Option 3: 550
Option 4: 440
Correct Answer: 550
Solution : Given that the circumference of the base of the cone is 44 cm. The circumference of a circle is $2 \pi r$. $2 \pi r = 44$ $\Rightarrow r = \frac{44}{2 \pi} =7$ Given that the height of the cone is 24 cm. $l^2 =
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